Seattle’s Executive Order 2020-01 Pathway: Energy Efficiency, Conservation, and Fuel Switching in Buildings and Industry → New Buildings → Natural Gas Bans in New BuildingsJurisdiction: Local Governments Seattle’s Executive Order 2020-01, among other things, bans the use of natural gas and other fossil fuels in all new city-owned buildings, and calls for a plan to transition existing buildings away from fossil fuels by 2021.